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Naming Files to Ensure Maximum Storage

Other versions of this page are also available for the following:

Windows Mobile Not SupportedWindows Embedded CE Supported

8/28/2008

To store the maximum number of files on file allocation table (FAT) file systems, such as PC card storage devices, limit file names to eight uppercase characters and file extensions to three uppercase characters. File names that do not conform to these limits require more than one physical directory entry on a PC card.

Windows Embedded CE does not allow the following characters in a file or directory name:

  • Asterisk (*)
  • Double backslash (\\)
  • Slash (/)
  • Question mark (?)
  • Angle brackets (<>)
  • Colon (:)
  • Quotation marks (")
  • Pipe (|)
  • Any character whose ASCII value is less than 32

See Also

Concepts

FAT File System
File System Operations